Work-support.



C. C. BLAKE.

WORK SUPPORT- APPLICATION FILED 05c. 30. 19:5.

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C. C. BLAKE.

WORK SUPPORT.

APPLICATION FILED DEC. 30 L915.

1,284,640 Patented Nov. 12, 1918.

5 SHEETSSHEET 2- 0. c BLAKE.

WORK SUPPORT.

APPLICATION FILED DEC-30,1915.

1,28%,M, Patented Nov. 12, 1918.

5 SHEETSSHEET 3.

I haw??? C. BLAKE WORK SUPPORT.

APPLICATION FILED 050. so

Patented Nov. 12,1918.

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WORK SUPPORT.

APPLICATION FILED 050.30. r915.

Patented Nov. 12; 1918.

5 SHEETS-SHEET 5.

TTED TATS PATNT FTCE.

CHARLES C. BLAKE, OF BROOKLINE, MASSACHUSETTS, ASSIGNOR TO C. C. BLAKE,INCORPORATED, 013 BOSTON, MASSACHUSETTS, A CORPORATION OF NEW YORK.

woaK-surron'r.

Specification of Letters Patent.

I Patented Nov. 12, 19118.

Application filed December 30, 1915. Serial No. 69,375

To all whom it may concern:

Be it known that I, CHARLES C. BLAKE, a citizen of the United States,residing at Brookline. in the county of Norfolk and State ofMassachusetts, have invented a new and useful Improvement inWork-Supports, of which the following is a specificatlon.

The present invention relates to shoe machines and more particularly toautomatic shoe machines for use in the manufacture of Blake welt shoes.

The object of the present invention is to provide automatic shoemachines with a work support of improved constructlon whereby the properrelation between the op erating tools and the work may be secured withbut little care and skill upon the part of the operative.

To the accomplishment of this object, and such others as may hereinafterappear, the features of the invention relate to certain devices,combinations and arrangements of parts, hereinafter described and thenset forth broadly and in detail in the claims appended.

The various features of the present invention will be best understoodfrom an inspection of the accompanying drawings illustrating the bestform of the invention at present advised, in which,

Figure 1 is a right side elevation of the machine;

Fig. 2 is a front elevation;

Fig. 3 is a plan of the jack attachedto the leader but removed from themachine;

Fig. 4 is a plan, partly in' section, of the leader and its associatedparts;

Fig. 5 is a sectional elevation of the jack and its supporting,actuating and guiding mechanisms; and

Fig. 6 is a sectional elevation on the line 6-6, Fig. 5.

The machine illustrated in the drawings comprises a straighteye-pointedneedle 1, an awl 2, a gage 3, a pair of gages or feet 4, alooper 5, a knife or gouge 6 and a welt guide 7, all of which aresupported on a slide 8 mounted to slide vertically in the machine head.The parts above briefly referred to are constructed and arranged in thesame manner and operated by the same mechanism as the correspondingparts of the machine disclosed in application for Letters Patent of theUnited States filed by me of a chambered post 16.

convenience the shoe, is mounted upon a jack 9 (Fig. 5) having a spindle10 and saddle 11. The spindle 10 is secured to a boss 12 (Fig. 3) formedon a plate 13 carried by two vertical plates 14 rising from a base 15.The saddle 11 consists of apad of yielding material mounted upon theupper end The post 16 is mounted on a standard 17 and is guided to slidevertically therein by a screw 18 which is arranged to engage a slot 19formed in the post 16. The saddle 11 is normally held elevated by acoiled spring 20 which is interposed between the bottom of the standard17 and the top ofthe chamber in the post 16. To permit the saddle 11 tobe forced upwardly to jack the shoe the post 16 carries a rack 21 which,when the saddle is under the influence of the spring 20, registers withan opening 22 formed in the worm 23. This worm is mounted in a housing24 on a vertical shaft 25 journaled in the standard 17 and is providedwith a handle 26 by means of which the operative may engage the wormwith the rack 21 and force the saddle 11 upwardly to jack the shoe. Topermit the jack to accommodate different sizes of shoes the standard 17is mounted to slide on ways 27 formed on the plates 14. The plates 14are provided with a frame 28 (Fig. 3) projecting laterally on both sidesthereof. The frame 28 is provided with a pair of runners 29 dependingvertically therefrom. The runners 29 slide over the smooth upper surfaceof a platen 30 (Figs. 4 and 5). The platen is provided with a pair ofdowel pins 31 arranged to engage sockets formed in the upper surface ofa bracket 32 which is bolted (Fig. 1) to the leg frame 33 of themachine. The platen 30 is additionally secured to the bracket 32 bymeans of a pair of screws 34 (Fig. 4).

In order to automatically slide the jack over the platen to transfer thepoints of operation of the tools around the shoe the jack is secured toa leader 35 (Figs. 5 and 6) which has a. guiding flange 36 the internalperiphe of which has the same contour order to permit the peripheries ofthe insole and the guiding flange of the leader to be vertically alineso that the projections of the edge of the insole curved laterally andlongitudinally on the bottom of the jack upon the plane of the leaderwill coincide with the inside face of the guidin flange, the leader isprovided with a pair 0 buttonhole slots 37 (Fig. 4) which receive headedbolts 38 (Fig 5) carried by the base 15 of the jack. With thisconstruction the jack may be placed upon the-leader by passing the headsof the bolts 38 through the large ends of the buttonhole slots 37. Thejack is then shifted on the leader until the edge of the insole isvertically alined with the inside face of the guiding flange. Thismovement of the jack brings the shanks of the bolts within the smallends of the buttonhole slots 37. To clamp the jack to the leader theends of the shanks of the bolts are provided with pins 39 engaged by theopposite ends of a leaf spring 40 arranged to embrace the shanks of thebolts. The spring is bowed to exert clamping pressure on the bolts andthus clamp the jack by a trianlar cam 41 secured to a shaft 42 journaled1n the plates 14 and actuated through a handle 43 (Figs. 2 and 3)carried by the shaft. The base 15 carries a pair of pins 44 which act asfulcrums for the leaf spring 40 during the bowing thereof.

The leader is actuated to transfer the point of operation of the toolaround the shoe by a pin wheel 45 which engages a series of holes 46(Fig. 6) bored in the guiding flange 36. The pm wheel 45 is secured tothe upper end of a vertical shaft 47 journaled in bearings formed in.the bracket 32. The shaft 47 is driven from a horizontal shaft 48,(Figs. 1 and 5), one

end of which is journaled in the bracket 32 gears 52 (Fig. 1)

and the other end of which is journaled in a boss 49 suitably formed ona head 50 for the operating tools, through bevel gears 51. The shaft 48is driven through bevel from a vertical shaft 53 journaled in the head50. The shaft 53 is alternately driven and locked from movement by amechanical movement 54 which is illustrated and described in LettersPatent of the United States No. 1,241,911, October 2, 1917.

In order to swing the jack laterally as the points of operation of thetools are transferred around the shoeto maintain the edge of the shoeinsole in proximity to the tools in the line of feed, the guiding flange36 on the leader .is engaged by a guide roll 55 (Figs. 4 and 5 arrangedto engage inside the flange and y guide rolls 56 and 57 arranged toengage outside the flange. The uide roll 55 is carried on the upper end0 a vertical pin 58 (Fig. 5) which is rotatably mounted on a bearingformed in the bracket 32. The pin 58 carries a plane surfaced sleeve 59between the bracket 32 and a collar 60 on the pin, which is providedwith a roll 61 embraced by a cam slot 62 (Fig. 6)' formed in a slide 63slidably mounted in a bracket 32. The slide 63 is connected to an arm 64projecting from a rock shaft 65 (Fig. 1) journaled in the leg frame 33.A second arm 66 projecting from the rock shaft 65 is provided with ahandle 67 by means of which the -slide 63 may be actuated to cause thecam -shoe insole into the desired position with relation to the line offeed. In order to enable the rolls to engage the flange at all timeswithout binding as they traverse the reverse curves of the flange at theshank and around the toe, the guide rolls 56 and 57 are journaledrespectively, in arms 68 and 69 which are tied together by a pair oftie-pieces 70 and 71 (Fig. 5). The arms 68 and 69 reciprocate inguideways 72 (Fig. 6) formed in the frame 32 and are actuated in adirection to press the guide rolls 56 and 57 a ainst the flange 36 bymeans of a spring 73 loosely coiled around a, guiding pin 74 on thebracket 32 and interposed between the bracket and a tension ad ustingscrew 75 carried by a chamber 76 secured to the tie-piece 71. T0withdraw the guide rolls 56 and 57 from the guiding flange 36 at thesame time as the guide roll 55 is withdrawn therefrom the slide 63 isprovided with a horizontal extension 77 (Figs. 4 and 6). This extensionis provided with a cam slot 78 which embraces a roll 79 carried by thetie-piece 70. With this construction a downward movement of the handle67 simultaneously depresses the guide roll 55 and withdraws the guiderolls 56 and 57 from the flange 36 against the tension of the actuatingsprings 73. It will be noticed from an inspection of Fig. 4 that the camslot 78 is wide enough to permit the roll 79 to move freely therein asthe guide rolls 56 and 57 yield to the curves of the leader; Themovement of the slide 63 is limited in both directions by a pair of pins80 and 81 (Fig. 4) arranged to alternately engage the opposite sides ofthe bracket 32. A

In order to permit the slide 8 to be ele vated into an inoperativeposition to permit the insertion and removal of the work with-' asaeeais loosely connected to the upper end of av rod 85 which is looselyconnected at its lower end to a perforated lug 86 loosely mounted on thearm 66. With this construction the operative may by manipulation of thehandle 67 simultaneously unclamp the jack and elevate the tools. Toremove the weight of the handle lever 67 and its connected parts fromthe rod 85 so that the slide 8 may-.move freely vertically whileadapting itself to the height of the work the arm 64 is connected to theleg frame 33 by a counterbalancing spring 87 (Fig. 1).

In one type of automatic shoe machine heretofore devised it was proposedto swing the shoe about the point of operation of the tool. This pointvaries with relation to the edge of the insole in the diflerent machinesused in bottoming welt shoes so that a leader, which guided the workthrough an automatic inseam sewing machine in which the work swingsabout the point of opera tion of the tool at some distance inside theedge of the insole, is not adapted to guide the same work through theold type of automatic outseam sewing machine, or rough rounding,'or soleedge finishing machine, in all of which the work swings about an axispassing through the work at some distance outside the edge of theinsole. I have discovered that by swinging the work about an axiscoinciding with the edge of the insole, I can use the same leader in allthe diflerent machines used to bottom a welt shoe as the variationbetween the point of operation of thetools, located both within andoutside the edge of the insole, and the edge of the insole is notsuficient to affect the different shoe operations. Stated in anotherway, I have discovered that if an axis, which passes through the work ata mean distance between the extreme positions ofthe paths of the toolsused in the diflerent shoe bottoming operations, is selected, a singleleader may then be used to guide the work through all the automaticbottoming machines.

It will be clear to those skilled in this art, and with the generalobjects of the present invention in view, that changes may be made inthe details of structure, the described and illustrated embodimentthereof being in tended as an exploitation of its underlying essentials,the features whereof are definltely stated in their true scope in theclaims herewith.

, What is claimed as new, is

tion, a leader, a work support carried thereby, and means permitting thesupport to be shifted on the leader to bring a contour on the work inalinement with a contour on the leader, substantially as described.

3. A work support, having, in combination, a leader, and a shoesupporting jack carried thereby and provided with runners extendinlaterally of the jack, substantially as described.

4:. A work support, having, in combination, a leader, a shoe supportingjack carried thereby, a frame extending laterally on both sides of thejack, and a pair of runners vertically depending from the frame,substantially as described.

5, A work support, having, in combination, a leader provided withbuttonhole slots. a shoe supporting jack carrying headed bolts arrangedto cooperate with the slots in the leader and means for clamping theheads of the bolts against the leader comprising a leaf spring arrangedto engage pins carried by the bolts, a cam plate arranged to engage thespring, and mechanism for actuating the cam plate to bow the spring toexert clamping pressure on the heads of the bolts, sub stantially asdescribed.

6. The combination with an operating tool of a shoe supporting jack, aleader secured thereto and provided with a guiding flange, means forrelativelyactuating the tool and jack to transfer the tool around theshoe, guides engaging said flange and cooperating therewith to swing thejack laterally as the tool is transferred around the shoe, and means forrelatively actuating the guides in two planes to release the flangetherefrom, substantially as described.

7. The combination with an operating tool of a shoe supporting jack, aleader secured thereto provided with a guiding flange, a pair of rollsarranged to engage the outside face of the flange, a slide for therolls, a cam roll carried by the slide, and a second slide mountedtransversely to the firstslide and provided with a slot constructed topermit movement of the cam roll therein when the second slide is in oneposition and to move the cam roll and the first slide when the secondslide is moved into another position,-substantially as described.

8. The combination ith an operating tool of a shoe supporting jack, aleader secured thereto provided with: a guiding flange, means forrelatively actuatingthe tool and the jack to transfer the tool aroundthe shoe, guides engaging said flange and cooperating therewith to swingthe jack laterally as the tool is transferred around the shoe, and meansfor separating the tool and the shoe and releasing the guides from theflange, substantially as described.

9. The combination with an opera-ting tool of a leader having, whenpositioned in the machine, a definite relation to the tool, a shoesupporting jack carried by the leader, and means permitting the jack tobe shifted on the leader to bring the shoe insole into alinement withthe leader, substantially as described.

10. The combination with an operating tool of a shoe supporting jack, aleader secured thereto and provided with a guiding flange, means forrelatively actuating the tool and jack to transfer the tool around theshoe, a guide engaging inside the flange and a pair of guides engagingoutside the flange cooperating with the flange to swing the acklaterally about an axis coinciding with the edge of the insole of theshoe mounted on the jack as the tool is transferred around the shoe, andmeans for lowering the inside guide vertically, substantially asdescribed.

tively yielding guides cooperating with the flange to swing the jacklaterally about an axis coinciding with the edge of the insole of theshoe mounted on the jack.

12. A work support comprising a flat leader having a depending guidingflange,

and a shoe supporting jack having an msole, curved laterally andlongitudinally, thereon mounted on the leader, the rejections of theedge of the insole .on the p ane of the leader coinciding with theinside face of the guiding flange.

CHARLES C. BLAKE.

